Weather on July 21 in Sydney
Historical weather data for July 21 in Sydney, Australia
Avg High18°C (64°F)
Avg Low9°C (48°F)
Warmest201617°C
Coldest19829°C
Based on 56 years of data from SYDNEY (OBSERVATORY HILL)
About This Date
July 21st in Sydney, Australia typically brings mild summer weather, with average highs around 18°C and lows near 9°C. Over 56 years of records, the warmest July 21st was in 2016 (17°C average), while the coldest was 1982 (9°C) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 27% of July 21st dates historically, with the wettest July 21st recording 1.54" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for July 21st in Sydney? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 18°C (64°F) | 11°C (51°F) | -- |
| 2025 | 18°C (65°F) | 10°C (50°F) | -- |
| 2024 | 17°C (63°F) | 12°C (54°F) | -- |
| 2023 | 18°C (64°F) | 8°C (47°F) | -- |
| 2022 | 17°C (63°F) | 11°C (51°F) | -- |
| 2021 | 14°C (58°F) | 10°C (50°F) | -- |
| 2020 | 18°C (64°F) | 8°C (47°F) | 0 mm |
| 2019 | 24°C (75°F) | 8°C (47°F) | 0 mm |
| 2018 | 18°C (65°F) | 9°C (48°F) | 0 mm |
| 2017 | 18°C (64°F) | 8°C (46°F) | 0 mm |
| 2016 | 19°C (67°F) | 14°C (57°F) | 20 mm |
| 2015 | 19°C (67°F) | 8°C (47°F) | 3 mm |
| 2014 | 18°C (65°F) | 9°C (48°F) | 0 mm |
| 2013 | 16°C (61°F) | 8°C (47°F) | 0 mm |
| 2012 | 15°C (59°F) | 8°C (47°F) | 5 mm |
| 2011 | 13°C (56°F) | 11°C (52°F) | 39 mm |
| 2010 | 16°C (60°F) | 8°C (46°F) | 7 mm |
| 2009 | 23°C (74°F) | 9°C (48°F) | 0 mm |
| 2008 | 18°C (64°F) | 11°C (51°F) | 3 mm |
| 2007 | 16°C (61°F) | 8°C (47°F) | 1 mm |
| 2006 | 17°C (63°F) | 9°C (48°F) | 9 mm |
| 2005 | 18°C (65°F) | 8°C (46°F) | 0 mm |
| 2004 | 17°C (62°F) | 6°C (43°F) | 0 mm |
| 2003 | 19°C (67°F) | 11°C (51°F) | 1 mm |
| 2002 | 17°C (62°F) | 9°C (48°F) | 0 mm |
| 2001 | 17°C (63°F) | 8°C (47°F) | 0 mm |
| 2000 | 18°C (65°F) | 9°C (49°F) | 0 mm |
| 1999 | 16°C (61°F) | 9°C (48°F) | 0 mm |
| 1998 | 19°C (66°F) | 12°C (53°F) | 14 mm |
| 1997 | 17°C (63°F) | 6°C (43°F) | 0 mm |
| 1996 | 16°C (60°F) | 11°C (51°F) | 0 mm |
| 1995 | 17°C (62°F) | 4°C (40°F) | 0 mm |
| 1994 | 18°C (65°F) | 7°C (44°F) | 0 mm |
| 1993 | 18°C (64°F) | 8°C (47°F) | 0 mm |
| 1992 | 14°C (58°F) | 7°C (45°F) | 7 mm |
| 1991 | 19°C (66°F) | 11°C (51°F) | 0 mm |
| 1990 | 18°C (65°F) | 9°C (48°F) | 0 mm |
| 1989 | 17°C (62°F) | 7°C (44°F) | 0 mm |
| 1988 | 19°C (66°F) | 12°C (54°F) | 0 mm |
| 1987 | 17°C (63°F) | 6°C (42°F) | 0 mm |
| 1986 | 16°C (61°F) | 9°C (49°F) | 2 mm |
| 1985 | 17°C (63°F) | 8°C (46°F) | 0 mm |
| 1984 | 17°C (62°F) | 6°C (43°F) | 0 mm |
| 1983 | 14°C (58°F) | 6°C (43°F) | 8 mm |
| 1982 | 14°C (57°F) | 5°C (41°F) | 19 mm |
| 1981 | 17°C (62°F) | 14°C (58°F) | 0 mm |
| 1980 | 16°C (61°F) | 8°C (46°F) | 0 mm |
| 1979 | 21°C (69°F) | 9°C (49°F) | 0 mm |
| 1978 | 21°C (69°F) | 10°C (50°F) | 0 mm |
| 1977 | 17°C (62°F) | 7°C (44°F) | 0 mm |
| 1976 | 16°C (61°F) | 9°C (48°F) | 0 mm |
| 1975 | 18°C (65°F) | 7°C (45°F) | 0 mm |
| 1974 | 19°C (66°F) | 12°C (53°F) | 0 mm |
| 1973 | 18°C (65°F) | 10°C (50°F) | 0 mm |
| 1972 | 18°C (64°F) | 8°C (47°F) | 0 mm |
| 1971 | 18°C (64°F) | 7°C (44°F) | 0 mm |